单项选择题
The world's oil supply（）
A. haven been gradually being exhausted B. is being gradually exhausted C. is gradually exhausted D. has gradually exhausted
单项选择题 Don't be careless again, （）
单项选择题 It is what you do rather than what you say （）matters.
单项选择题 （）he said he wasn't hungry, he ate a big breakfast.
